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seaweed cut out on a white background
Close up of plastic pack drifts with scraps of Seaweed Brown Sargassum on surface of water form floats islands of algae and plastic debris, on daytime in sunlight, Red sea, Egypt
Sea weed and clear water background
Extreme close-up of sargassum seaweed under rippling water with flowing leaves.
Horizontal high angle closeup photo of a variety of seaweed washed up on a rock platform at the beach in Summer. Ulladulla, south coast NSW.
A large bundle of seaweed
Seaweed and sand on North Sea coastline
Ocean algae on a sandy beach off the coast of France.
Close up of red algae lying in the sand at the beach
Close-up shot of tangled seaweed washed up on the shore taken by the sea in Northumberland. The sea and rocky shore can be seen in the background. Declines in seaweeds due to ocean acidification  leave Britain and other coastlines open to the damaging effects of the sea, which reduce the stability of the land. Inhabitants of the seaweed forests, like fish, are also at risk of losing their habitat.
Floats allowing brown sargassum algae to float in shallow sandy sea on sunny day
Rockweed (Fucus gardneri) has lacy mounds of flat, greenish-brown leaves.  It is a brown hairless alga that is part of intertidal life along the Pacific North American coast.  When mature, the tips become bladders that puff up with a mixture of gas bubbles and jelly to make it float in the water.  This allows the wide, mitten- like blades of the seaweed to be exposed to sunlight.  These blades are used as a location for fish to lay eggs and sperm.  The Holdfast is the section that keeps the seaweed anchored to a rock, so it doesn’t wash ashore with the tides.  The Blades are wide to catch sunlight for photosynthesis.The tips are edible.  Settlers referred to them as “Indian popcorn” because Aboriginal Tribes dried them to eat.  \nOther names are bladderwrack and popweed.
Focus on air bladders on kelp plant
Floating sea weed (Codium Fragile)
Coast near Cap Gris Nez in northern France on a calm day in summer, interesting rock formations
Brown seaweed in brackish water - seen in a canal in Venezia in the northern part of Italy
Giant kelp, Macrocystis pyrifera, grows in the cold eastern Pacific waters that flow along the California coast. Kelp forests support a surprising and diverse array of marine biodiversity.
Vertical high angle extreme closeup photo of a variety of green and brown seaweed washed up on the beach at low tide. Mollymook, south coast NSW in Summer.
Bladderwrack, Fucus vesiculosus, is an alga that is also used as a medicinal plant
South Otago, South Island,New Zealand.
Two different types of seaweed on the beach
Seagrasses Underwater Sea life   Scuba diver point of view  Sea grass Posidoniaceae
Seaweed or Kelp on the beach.
Close up of Seaweed in Sand on a Beach
Seaweed. Seaweed on the sand. Seaweed laying on the beach.
Bladderwrack or rockweed on the stony beach at Hvalsey Beach outside Qaqortoq - Julianehåb on a sunny summers day
Various forms of kelp plant habitats in the temperate waters of southern Pacific ocean around New Zealand.
Caribbean beach sandy background
Feamainn bhuí, rockweed or knotted kelp, Ascophyllum nodosum, growing on coastal rocks of Galicia, Spain
Tide pools with sea life
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